前端将base64转图片（二维码生成）

					
						二维码
					

			handleStyledButtonClick() {
				var that = this
				// 接口调用
				roomdata.getRoomQRCode(function() {
                //获取返回值base64
					that.base64 = that.detailmodel.roomQRCode
					// 将base64字符串转换为ArrayBuffer格式
					const arrayBuffer = uni.base64ToArrayBuffer(that.base64);
					// 将ArrayBuffer转换为Blob对象
					const blob = new Blob([arrayBuffer], {
						type: 'image/png'
					});
					// 创建Blob URL
					const imgUrl = URL.createObjectURL(blob);
					// 弹框显示图片
					uni.previewImage({
						urls: [imgUrl],
					})
				})
			},
			// 将 Base64 字符串转换为 Blob 对象
			base64ToBlob(base64) {
				const parts = base64.split(';base64,');
				const contentType = parts[0].split(':')[1];
				const raw = window.atob(parts[1]);
				const rawLength = raw.length;
				const uInt8Array = new Uint8Array(rawLength);
				for (let i = 0; i   

	.flex-item {
		margin-right: 10px;
	}
	.custom-button {
		width: 90px;
		height: 20px;
		line-height: 20px;
		background-color: #2979FF;
		border: none;
		cursor: pointer;
	}